Home / 176,122.28-243,048.72-100,672.40

Finding the Fourth Proportional to 176,122.28, 243,048.72 and 100,672.40

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Solution

The fourth proportional to 176,122.28, 243,048.72 and 100,672.40 is: 138,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,122.28 : 243,048.72 = 100,672.40 : x
  2. Step 2: Convert to fraction form
    176,122.28/243,048.72 = 100,672.40/x
  3. Step 3: Cross multiply
    176,122.28x = 243,048.72 × 100,672.40
  4. Step 4: Simplify right side
    176,122.28x = 24,468,297,959.33
  5. Step 5: Solve for x
    x = 24,468,297,959.33/176,122.28
  6. Step 6: Final answer
    x = 138,927.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.